Home / 1,289,453.20-1,933,499.40-436,231.60

Finding the Fourth Proportional to 1,289,453.20, 1,933,499.40 and 436,231.60

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Solution

The fourth proportional to 1,289,453.20, 1,933,499.40 and 436,231.60 is: 654,117.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,453.20 : 1,933,499.40 = 436,231.60 : x
  2. Step 2: Convert to fraction form
    1,289,453.20/1,933,499.40 = 436,231.60/x
  3. Step 3: Cross multiply
    1,289,453.20x = 1,933,499.40 × 436,231.60
  4. Step 4: Simplify right side
    1,289,453.20x = 843,453,536,861.04
  5. Step 5: Solve for x
    x = 843,453,536,861.04/1,289,453.20
  6. Step 6: Final answer
    x = 654,117.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.